implement the remaining "single instruction" JUMPR conditions

JUMPR can only do LT and GE comparisons, so the assembler implements
LE and GT conditions by using the LT and GE conditions respectively
and by adjusting the threshold accordingly.

Author: wnienhaus

esp32_ulp/opcodes.py

@@ -644,6 +644,12 @@ def i_jumpr(offset, threshold, condition):
         cmp_op = BRCOND_LT
     elif condition == 'ge':
         cmp_op = BRCOND_GE
+    elif condition == 'le':  # le == lt(threshold+1)
+        threshold += 1
+        cmp_op = BRCOND_LT
+    elif condition == 'gt':  # gt == ge(threshold+1)
+        threshold += 1
+        cmp_op = BRCOND_GE
     else:
         raise ValueError("invalid comparison condition")
     _br.imm = threshold

tests/compat/jumps.S

@@ -15,6 +15,10 @@ entry:
   jumpr later, 42, lt
   jumpr entry, 42, ge
   jumpr later, 42, ge
+  jumpr entry, 42, le
+  jumpr later, 42, le
+  jumpr entry, 42, gt
+  jumpr later, 42, gt
 
   nop
   nop